I was playing with PA Soft today and found a similar issue - I could read many of the modules but not all of them - notably the DDE.
I am using
this adapter.
I have researched this and while the adapter I am using is only KK (no CanBus/DCAN), it seems that this is all that should be required for a E53.
And yes, pins 7 & 8 are linked (from the manufacturer).
If I find out why, I'll let you know...
